This graph shows the estimated number of clients connecting via bridges. These numbers are derived from directory requests counted on bridges. Bridges distinguish connecting clients by IP version, so that graphs are available for both IP versions 4 and 6. For further details see these questions and answers about user statistics.

The estimated number of bridge users becomes available again, following the introduction of the new bridge authority Serge on 2018-07-13. The stats took about a week to reappear because of the discontinuity in bridge reporting affecting the estimated fraction of reporting bridges.
mailing list post
graph

2018-07-15

snowflake

Made the Snowflake bridge report to the new Serge bridge authority.
comment

2018-07-14

Bridges

Release of Tor 0.2.9.16, 0.3.2.11, 0.3.3.9, and 0.3.4.5-rc. Switches bridge authority from Bifroest to Serge. The number of bridges begins counting up from zero as bridges are upgraded. The estimated number of bridge users remained unavailable until 2018-07-21 because of the discontinuity.
announcement
ticket
blog post
number of bridges graph

This material is supported in part by the National Science Foundation
under Grant No. CNS-0959138. Any opinions, finding, and conclusions or
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